Premium-Quality since 1867
Our clients are among the best in their respective industries. And they expect the best from us.
250 employees are committed at COG to our clients' success, ranging from engineers in the application technology department to our colleagues in the world's largest O-Ring warehouse with their rapid response capabilities. As an independent manufacturer based in Pinneberg near Hamburg, managed by the fifth generation of the founding family, we are a leading supplier of precision O-Rings thanks to our comprehensive stock, flexible production facilities and customer service commitment.